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Diffstat (limited to 'src/3rdparty/phonon/ds9/backend.cpp')
| -rw-r--r-- | src/3rdparty/phonon/ds9/backend.cpp | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/src/3rdparty/phonon/ds9/backend.cpp b/src/3rdparty/phonon/ds9/backend.cpp new file mode 100644 index 0000000..245749a --- /dev/null +++ b/src/3rdparty/phonon/ds9/backend.cpp @@ -0,0 +1,343 @@ +/* This file is part of the KDE project. + +Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). + +This library is free software: you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation, either version 2.1 or 3 of the License. + +This library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with this library. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "backend.h" +#include "backendnode.h" + +#include "audiooutput.h" +#include "effect.h" +#include "mediaobject.h" +#include "videowidget.h" +#include "volumeeffect.h" + +//windows specific (DirectX Media Object) +#include <dmo.h> + +#include <QtCore/QSettings> +#include <QtCore/QSet> +#include <QtCore/QVariant> + +#include <QtCore/QtPlugin> + +QT_BEGIN_NAMESPACE + +Q_EXPORT_PLUGIN2(phonon_ds9, Phonon::DS9::Backend); + +namespace Phonon +{ + namespace DS9 + { + bool Backend::AudioMoniker::operator==(const AudioMoniker &other) + { + return other->IsEqual(*this) == S_OK; + } + + + Backend::Backend(QObject *parent, const QVariantList &) + : QObject(parent) + { + ::CoInitialize(0); + + //registering meta types + qRegisterMetaType<HRESULT>("HRESULT"); + qRegisterMetaType<Graph>("Graph"); + } + + Backend::~Backend() + { + m_audioOutputs.clear(); + m_audioEffects.clear(); + ::CoUninitialize(); + } + + QObject *Backend::createObject(BackendInterface::Class c, QObject *parent, const QList<QVariant> &args) + { + switch (c) + { + case MediaObjectClass: + return new MediaObject(parent); + case AudioOutputClass: + return new AudioOutput(this, parent); +#ifndef QT_NO_PHONON_EFFECT + case EffectClass: + return new Effect(m_audioEffects[ args[0].toInt() ], parent); +#endif //QT_NO_PHONON_EFFECT +#ifndef QT_NO_PHONON_VIDEO + case VideoWidgetClass: + return new VideoWidget(qobject_cast<QWidget *>(parent)); +#endif //QT_NO_PHONON_VIDEO +#ifndef QT_NO_PHONON_VOLUMEFADEREFFECT + case VolumeFaderEffectClass: + return new VolumeEffect(parent); +#endif //QT_NO_PHONON_VOLUMEFADEREFFECT + default: + return 0; + } + } + + bool Backend::supportsVideo() const + { +#ifndef QT_NO_PHONON_VIDEO + return true; +#else + return false; +#endif //QT_NO_PHONON_VIDEO + } + + QStringList Backend::availableMimeTypes() const + { + QStringList ret; + { + QSettings settings(QLatin1String("HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Multimedia\\mplayer2\\mime types"), QSettings::NativeFormat); + ret += settings.childGroups(); + } + { + QSettings settings(QLatin1String("HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Multimedia\\wmplayer\\mime types"), QSettings::NativeFormat); + ret += settings.childGroups(); + } + + ret.removeDuplicates(); + ret.replaceInStrings("\\", "/"); + qSort(ret); + return ret; + } + + Filter Backend::getAudioOutputFilter(int index) const + { + Filter ret; + if (index >= 0 && index < m_audioOutputs.count()) { + m_audioOutputs.at(index)->BindToObject(0, 0, IID_IBaseFilter, reinterpret_cast<void**>(&ret)); + } else { + //just return the default audio renderer (not directsound) + ret = Filter(CLSID_AudioRender, IID_IBaseFilter); + } + return ret; + } + + + QList<int> Backend::objectDescriptionIndexes(Phonon::ObjectDescriptionType type) const + { + QList<int> ret; + + switch(type) + { + case Phonon::AudioOutputDeviceType: + { +#ifdef Q_OS_WINCE + ret << 0; // only one audio device with index 0 +#else + ComPointer<ICreateDevEnum> devEnum(CLSID_SystemDeviceEnum, IID_ICreateDevEnum); + if (!devEnum) { + return ret; //it is impossible to enumerate the devices + } + ComPointer<IEnumMoniker> enumMon; + HRESULT hr = devEnum->CreateClassEnumerator(CLSID_AudioRendererCategory, enumMon.pparam(), 0); + if (FAILED(hr)) { + break; + } + AudioMoniker mon; + + //let's reorder the devices so that directshound appears first + int nbds = 0; //number of directsound devices + + while (S_OK == enumMon->Next(1, mon.pparam(), 0)) { + LPOLESTR str = 0; + mon->GetDisplayName(0,0,&str); + const QString name = QString::fromUtf16((unsigned short*)str); + ComPointer<IMalloc> alloc; + ::CoGetMalloc(1, alloc.pparam()); + alloc->Free(str); + + int insert_pos = 0; + if (!m_audioOutputs.contains(mon)) { + insert_pos = m_audioOutputs.count(); + m_audioOutputs.append(mon); + } else { + insert_pos = m_audioOutputs.indexOf(mon); + } + + if (name.contains(QLatin1String("DirectSound"))) { + ret.insert(nbds++, insert_pos); + } else { + ret.append(insert_pos); + } + } +#endif + break; + } +#ifndef QT_NO_PHONON_EFFECT + case Phonon::EffectType: + { + m_audioEffects.clear(); + ComPointer<IEnumDMO> enumDMO; + HRESULT hr = ::DMOEnum(DMOCATEGORY_AUDIO_EFFECT, DMO_ENUMF_INCLUDE_KEYED, 0, 0, 0, 0, enumDMO.pparam()); + if (SUCCEEDED(hr)) { + CLSID clsid; + while (S_OK == enumDMO->Next(1, &clsid, 0, 0)) { + ret += m_audioEffects.count(); + m_audioEffects.append(clsid); + } + } + break; + } + break; +#endif //QT_NO_PHONON_EFFECT + default: + break; + } + return ret; + } + + QHash<QByteArray, QVariant> Backend::objectDescriptionProperties(Phonon::ObjectDescriptionType type, int index) const + { + QHash<QByteArray, QVariant> ret; + switch (type) + { + case Phonon::AudioOutputDeviceType: + { +#ifdef Q_OS_WINCE + ret["name"] = QLatin1String("default audio device"); +#else + const AudioMoniker &mon = m_audioOutputs[index]; + LPOLESTR str = 0; + HRESULT hr = mon->GetDisplayName(0,0, &str); + if (SUCCEEDED(hr)) { + QString name = QString::fromUtf16((unsigned short*)str); + ComPointer<IMalloc> alloc; + ::CoGetMalloc(1, alloc.pparam()); + alloc->Free(str); + ret["name"] = name.mid(name.indexOf('\\') + 1); + } +#endif + } + break; +#ifndef QT_NO_PHONON_EFFECT + case Phonon::EffectType: + { + WCHAR name[80]; // 80 is clearly stated in the MSDN doc + HRESULT hr = ::DMOGetName(m_audioEffects[index], name); + if (SUCCEEDED(hr)) { + ret["name"] = QString::fromUtf16((unsigned short*)name); + } + } + break; +#endif //QT_NO_PHONON_EFFECT + default: + break; + } + return ret; + } + + bool Backend::endConnectionChange(QSet<QObject *> objects) + { + //end of a transaction + for(QSet<QObject *>::const_iterator it = objects.begin(); it != objects.end(); ++it) { + if (BackendNode *node = qobject_cast<BackendNode*>(*it)) { + MediaObject *mo = node->mediaObject(); + if (mo) { + switch(mo->transactionState) + { + case Phonon::ErrorState: + case Phonon::StoppedState: + case Phonon::LoadingState: + //nothing to do + break; + case Phonon::PausedState: + mo->transactionState = Phonon::StoppedState; + mo->pause(); + break; + default: + mo->transactionState = Phonon::StoppedState; + mo->play(); + break; + } + + if (mo->state() == Phonon::ErrorState) + return false; + } + } + } + + return true; + } + + + bool Backend::startConnectionChange(QSet<QObject *> objects) + { + //let's save the state of the graph (before we stop it) + for(QSet<QObject *>::const_iterator it = objects.begin(); it != objects.end(); ++it) { + if (BackendNode *node = qobject_cast<BackendNode*>(*it)) { + if (MediaObject *mo = node->mediaObject()) { + if (mo->state() != Phonon::StoppedState) { + mo->transactionState = mo->state(); + mo->ensureStopped(); //we have to stop the graph.. + if (mo->state() == Phonon::ErrorState) + return false; + } + } + } + } + + return true; + } + + bool Backend::connectNodes(QObject *_source, QObject *_sink) + { + BackendNode *source = qobject_cast<BackendNode*>(_source); + if (!source) { + return false; + } + BackendNode *sink = qobject_cast<BackendNode*>(_sink); + if (!sink) { + return false; + } + + //setting the graph if needed + if (source->mediaObject() == 0 && sink->mediaObject() == 0) { + //error: no graph selected + return false; + } else if (source->mediaObject() && source->mediaObject() != sink->mediaObject()) { + //this' graph becomes the common one + source->mediaObject()->grabNode(sink); + } else if (source->mediaObject() == 0) { + //sink's graph becomes the common one + sink->mediaObject()->grabNode(source); + } + + return source->mediaObject()->connectNodes(source, sink); + } + + bool Backend::disconnectNodes(QObject *_source, QObject *_sink) + { + BackendNode *source = qobject_cast<BackendNode*>(_source); + if (!source) { + return false; + } + BackendNode *sink = qobject_cast<BackendNode*>(_sink); + if (!sink) { + return false; + } + + return source->mediaObject() == 0 || + source->mediaObject()->disconnectNodes(source, sink); + } + } +} + +QT_END_NAMESPACE + +#include "moc_backend.cpp" |